Transplant patients get stronger COVID protection by temporarily lowering immune drugs

NCT ID NCT05077254

First seen Jan 11, 2026 · Last updated May 14, 2026 · Updated 14 times

Summary

This study looked at 48 kidney and liver transplant recipients who had a weak antibody response after their initial COVID-19 vaccines. Researchers gave everyone an extra mRNA booster shot and randomly assigned some to temporarily reduce their immunosuppressive medications. The goal was to see if lowering immune suppression could boost antibody levels without causing organ rejection or serious side effects.

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Contacts and locations

Locations

  • Emory Healthcare

    Atlanta, Georgia, 30322, United States

  • Houston Methodist

    Houston, Texas, 77030, United States

  • Johns Hopkins Institute for Clinical and Translational Research: Broadway Adult Outpatient Clinical Research Unit

    Baltimore, Maryland, 21287, United States

  • Mt. Sinai Hospital

    New York, New York, 10029, United States

  • NYU Langone Transplant Institute

    New York, New York, 10016, United States

  • Northwestern University

    Evanston, Illinois, 60208, United States

  • Ochsner Health

    New Orleans, Louisiana, 70121, United States

  • University of California San Francisco Health

    San Francisco, California, 94143, United States

  • University of California, San Diego

    San Diego, California, 92093, United States

  • University of Illinois Health

    Chicago, Illinois, 60612, United States

  • University of Iowa Hospitals

    Iowa City, Iowa, 52242, United States

  • University of Pennsylvania

    Philadelphia, Pennsylvania, 19104, United States

  • University of Pittsburgh

    Pittsburgh, Pennsylvania, 15260, United States

  • University of Wisconsin-Madison

    Madison, Wisconsin, 53706, United States

  • Weill Cornell Medicine

    New York, New York, 10065, United States

Conditions

Explore the condition pages connected to this study.